NCT00978081 2019-04-23Photodynamic Therapy in Treating Patients With Premalignant or Early Stage Head and Neck TumorsAbramson Cancer Center at Penn MedicinePhase 1 Completed35 enrolled
NCT00571974 2015-03-24Treatment of Oral Premalignant Lesions With 5-ALA PDTUniversity of ArkansasPhase 1/2 Completed29 enrolled 6 charts